I created a new app a few weeks ago that doesn't use Google App Signing. I didn't have any problems with that.
Maybe this link helps:
https://www.appypie.com/faqs/how-to-disable-app-signing-from-google-play-console
I created a new app a few weeks ago that doesn't use Google App Signing. I didn't have any problems with that.
Maybe this link helps:
https://www.appypie.com/faqs/how-to-disable-app-signing-from-google-play-console